Add guide for Flask

[cmacht]

I've set up Flask with the help of the existing Django guide, but would be happy to share my tweaks for uwsgi and some of the decisions I made to get Flask running that differ from it. Would writing a Flask guide be helpful?

[SparksFlyx3]

Please share! I spent 8 hours & didn't get my Flask App deployed on Uberspace..

[cmacht]

Hi Martina, it's still on my list. It's very similar to setting up Django, maybe this might help in the meanwhile: https://lab.uberspace.de/guide_django.html

[SparksFlyx3]

Didn't work for me. I switched to Heroku - easy deployment within 30 minutes.

[tomaculum]

It did not work for me either, since I got strange module not found errors even though the modules were installed.

What I did to get it running:

1. Django guide step 1

2. setup project folder and virtual environment

   mkdir ~/MyProject
   cd ~/MyProject
   python3.6 -m venv myvenv
   source myvenv/bin/activate
   pip install uwsgi flask

3. setup basic flask app

   setup app.py

   from flask import Flask, request
   
   app = Flask(__name__)
   
   @app.route('/')
   def hello_world():
      return 'Hello World!'
   
   if __name__ == '__main__':
      app.run()
   else:
      application = app

4. Django "Configure web server" step:

   replace content of setup daemon .ini file:

   [uwsgi]
   base = /home/<username>/MyProject
   chdir = /home/<username>/MyProject
   
   http = :8000
   master = true
   
   home = %(base)/myvenv
   pythonpath = %(base)/myvenv
   
   module = app
   callable = app
   
   uid = <username>
   gid = <username>
   

5. edit line in uwsgi.ini from step 1

   command=/home/<username>/MyProject/myvenv/bin/uwsgi --master --emperor %(ENV_HOME)s/uwsgi/apps-enabled

Especially the 5th step doesn't seem quite right since the uswgi.ini file shouldn't be linked to a specific project.

I'm looking forward to your guide and maybe in the meantime this saves someone some time.

[luto]

https://lab.uberspace.de/guide_flask.html